US5049128AExpiredUtility

Valved infusion port

Individually held — no corporate assignee on recordPriority: Feb 6, 1990Filed: Feb 6, 1990Granted: Sep 17, 1991
Est. expiryFeb 6, 2010(expired)· nominal 20-yr term from priority
A61M 39/02A61M 2039/263
73
PatentIndex Score
196
Cited by
11
References
8
Claims

Abstract

A valved infusion port of an infusion system comprising an injection unit having a primary infusion port and at least one secondary infusion port, characterized by the improvement to the secondary infusion port comprising: a bidirectional valve means disposed about the secondary infusion port; whereby the bidirectional valve means is capable of opening and closing the secondary infusion port to permit the administration of a secondary infusion without the use of a needle.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A valved infusion port of an infusion system comprising an injection unit having a primary infusion port and at least one secondary infusion port, characterized by the improvement to said secondary infusion port comprising: a bidirectional valve means disposed about said secondary infusion port, said bidirectional valve means is a two-way spring valve which comprises: a spring means, a valve port, and a valve plunger having a sealing means a conduit means disposed thereabout, wherein said spring means is connected to said valve plunger in such a way as to permit the opening said conduit means when said spring means is recoiled such that said sealing means is not in contact with said valve port and to permit the closing of said conduit means when said spring means is expanded such that said sealing means is in contact with said valve port; whereby said bidirectional valve means is capable of opening an closing said secondary infusion port to permit the administration of a secondary infusion without the use of a needle.   
     
     
       2. The valved infusion port according to claim 1, wherein a closing means is disposed about said secondary infusion port for keeping said secondary infusion port sterile. 
     
     
       3. The valved infusion port according to claim 2, wherein said closing means is a plastic flip-top cap. 
     
     
       4. The valved infusion port according to claim 2, wherein said closing means is a plastic or rubber stopper. 
     
     
       5. The valved infusion port according to claim 1, wherein said bidirectional valve is connected to either a syringe, a leur lock tubing, or an intravenous tubing. 
     
     
       6. The valved infusion port according to claim 1, wherein said spring means is a stainless steel spring. 
     
     
       7. The valved infusion port according to claim 1, wherein said valve plunger and valve port are formed from plastic or non-allergic plastic. 
     
     
       8. The valved infusion port according to claim 1, wherein said sealing means is a rubber or plastic 0-ring seal.

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